狀態 Prod
Vdd(V) 2.7-5.5
通道數 18
文件 Eval Board, Video, App Note, Code, Arduino
RGB Group 6
腳位尺寸(mm) QFN-24(4x4), SOP-24
控制接口 I2C
IC代碼 3218 = 3218
產品系列 31 = Commercial/Industrial Analog
產品類別 FL = FxLED Driver
腳位/封裝 GR = SOP
焊料類型 L = Lead-free (RoHS Compliant)
Temperature Grade S2 = Industrial temp. (-40°C to 85°C)
包裝選項 blank = Tray or Tube

IS31FL3218-GRLS2 特徵

  • 2.7V to 5.5V supply I2C interface, automatic address increment function Internal reset register
  • Modulate LED brightness with 256 steps PWM Each channel can be controlled independently
  • QFN-24 (4mm×4mm), SOP-24 packages


IS31FL3218 is comprised of 18 constant current channels each with independent PWM control, designed for driving LEDs. The output current of each channel can be set at up to 38mA (Max.) by an external resistor. The average LED current of each channel can be changed in 256 steps by changing the PWM duty cycle through an I2C interface. The chip can be turned off by pulling the SDB pin low or by using the software shutdown feature to reduce power consumption. The slave address is fixed “1010 1000”. IS31FL3218 is available in QFN-24 (4mm × 4mm) and SOP-24 packages. It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C.